diff options
Diffstat (limited to 'board/BuS/EB+MCF-EV123/VCxK.c')
| -rw-r--r-- | board/BuS/EB+MCF-EV123/VCxK.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/board/BuS/EB+MCF-EV123/VCxK.c b/board/BuS/EB+MCF-EV123/VCxK.c new file mode 100644 index 0000000..4938817 --- /dev/null +++ b/board/BuS/EB+MCF-EV123/VCxK.c @@ -0,0 +1,136 @@ +/* + * (C) Copyright 2005 + * BuS Elektronik GmbH & Co.KG <esw@bus-elektonik.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/m5282.h> +#include "VCxK.h" + +vu_char *vcxk_bws = (vu_char *)(CFG_CS3_BASE); +#define VCXK_BWS vcxk_bws + +static ulong vcxk_driver; + + +ulong search_vcxk_driver(void); +void vcxk_cls(void); +void vcxk_setbrightness(short brightness); +int vcxk_request(void); +int vcxk_acknowledge_wait(void); +void vcxk_clear(void); + +int init_vcxk(void) +{ + VIDEO_Invert_CFG &= ~VIDEO_Invert_IO; + VIDEO_INVERT_PORT |= VIDEO_INVERT_PIN; + VIDEO_INVERT_DDR |= VIDEO_INVERT_PIN; + + VIDEO_REQUEST_PORT |= VIDEO_REQUEST_PIN; + VIDEO_REQUEST_DDR |= VIDEO_REQUEST_PIN; + + VIDEO_ACKNOWLEDGE_DDR &= ~VIDEO_ACKNOWLEDGE_PIN; + + vcxk_driver = search_vcxk_driver(); + if (vcxk_driver) + { + /* use flash resist driver */ + } + else + { + vcxk_cls(); + vcxk_cls(); + vcxk_setbrightness(1000); + } + VIDEO_ENABLE_DDR |= VIDEO_ENABLE_PIN; + VIDEO_ENABLE_PORT |= VIDEO_ENABLE_PIN; + VIDEO_ENABLE_PORT &= ~VIDEO_ENABLE_PIN; + return 1; +} + +void vcxk_loadimage(ulong source) +{ + int cnt; + vcxk_acknowledge_wait(); + for (cnt=0; cnt<16384; cnt++) + { + VCXK_BWS[cnt*2] = (*(vu_char*) source); + source++; + } + vcxk_request(); +} + +void vcxk_cls(void) +{ + vcxk_acknowledge_wait(); + vcxk_clear(); + vcxk_request(); +} + +void vcxk_clear(void) +{ + int cnt; + for (cnt=0; cnt<16384; cnt++) + { + VCXK_BWS[cnt*2] = 0x00; + } +} + +void vcxk_setbrightness(short brightness) +{ + VCXK_BWS[0x8000]=(brightness >> 4) +2; + VCXK_BWS[0xC000]= (brightness + 23) >> 8; + VCXK_BWS[0xC001]= (brightness + 23) & 0xFF; +} + +int vcxk_request(void) +{ + if (vcxk_driver) + { + /* use flash resist driver */ + } + else + { + VIDEO_REQUEST_PORT &= ~VIDEO_REQUEST_PIN; + VIDEO_REQUEST_PORT |= VIDEO_REQUEST_PIN; + } + return 1; +} + +int vcxk_acknowledge_wait(void) +{ + if (vcxk_driver) + { + /* use flash resist driver */ + } + else + { + while (!(VIDEO_ACKNOWLEDGE_PORT & VIDEO_ACKNOWLEDGE_PIN)); + } + return 1; +} + +ulong search_vcxk_driver(void) +{ + return 0; +} + +/* eof */ |